ML20059A364

Proposed Tech Specs Revising Definition of Instrument Calibr

ML20059A364
Person / Time
Site:	Cooper
Issue date:	08/17/1990
From:	NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML20059A362	List: ML20059A364 NLS9000327, Application for Amend to License DPR-46,consisting of Proposed Change 87 to Tech Spec Re Definition of Instrument Calibr
References
NUDOCS 9008230005
Download: ML20059A364 (1)

Text

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F. _ Eunctional Test < - ' A functional . test is the manual operation or initiation of a c _ system, su b system or component to verify that it functions within design tolerances

- (e.g. the manual start of a core spray pump to verify that it runs 'and that it pumps L -the required volume of water).

F. A Caseous Radwaste Treatment System A CASEOUS RADWASTE TREATMENT SYSTEM is any. system 2

' designed and installed to reduce radioactive gaseous effluents by collecting primary coolant system offgases from the primary system and providing for. delay or holdup for the purpose of reducing the total radioactivity prior to release to the environment.

G, ' Hot Standbv Condition - Hot standby condition means operation with coolant I temperature greater that. 212'F, system pressure less than 1000 psig, and the mode switch in "Startup/ Hot Standby".

H. Immediate Immediate means that the required action will be initiated as soon as practicable considering the safe operation of the unit and the importance of the required 'ction.

a I.. InstrumentatioD

1. Instrument Functional Test . . Analog _ instrument functional test means the injection of a simulated signal into the instrument as close to the sensor as practical to verify the proper instrument channel response, alarm and/or initiating action. Bistable channels - the injection of a simulated signal into the sensor to verify OPERABII.ITY including alarm and/or trip functions.

2. Instrument Calibration An instrument calibration means the adjustment, . as necessary, of an instrument signal output so that it corresponds , - within acceptable range, and accuracy, to a known value(s) of the parameter which th$ instrument. monitors. Calibration shall encompass the entire instrument including sensor, alarm /or trip functions and.shall include the functional L test. The calibration-may be performed by any series of sequential, overlapping or total channel steps such that the entire channel is calibrated.

Calibration of instrument channels with resistance temperature detector (RTD) or thermocouple sensors shall consist of verification of operability of the sensing element, and normal calibration, of the remaining adjustable devices i in the channel, ,

3. Instrument Channel - An instrument channel means an arrangement of a sensor-and asociliary equipment required to generate and transmit a signal related to l~

the plant parameter monitored by that instrument channel, l

4 Instrument Ch.e g js - An instrument check is the qualitative determination of i

acceptable operability by observation of instrument behavior during operation.

l This determination shall include, where possible, comparison of the instrument with other independent instruments measuring the same variable.

5. Locie system Functionni Test - A logic system functional test means a test of relays and contacts of a logic circuit from sensor to activated device to l' ensure components are operable per design intent. Where practicable, action l-will go to completion; i.e. , pumps will be started and valves operated.

6. Protective Action - An action initiated by the protection system when a limiting safety system setting is reached. A protective action can be at a-channel or system level.

7. Protective Function - A system protective action which results from the protective action of the channels monitoring a particular plant condition.

9008230005 900817 POR ADOCK 05000298 ~2~

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